MCPSampling support

[skyline69uk]

Would it be possible to add the other side of the MCP standard i.e. MCP Sampling?
MCP sampling allows an MCP server to request completions from a language model (LLM) through a client, effectively flipping the typical client-server interaction. Instead of the client always initiating requests, the server can request AI assistance when needed. This enables the server to leverage AI for decision-making, structured data output, multi-step workflows, and external data analysis. It also allows for user review and approval of both the request and the completion before it's returned to the server.